Method of producing an optical or magneto-optical recording card and transfer type optical or magneto-optical recording medium

ABSTRACT

An optical recording card is produced using a transfer type optical recording medium. The transfer type optical recording medium comprises a base film, a peeling layer, an optical recording layer and a light permeable adhesive layer which are successively superimposed one above another to constitute a layered structure. A protective layer is adhered to the transfer type optical recording medium with the aid of an adhesive layer and the base film is then peeled off together with the peeling layer. Next, the protective layer to which the optical recording layer is adhered is adhesively attached to a card base in such a manner that the optical recording layer is interposed therebetween whereby an optical recording card is completely produced. The transfer type recording medium can be preserved in such a state that it is wound about a reel. Accordingly, the transfer type recording medium is adhered to the protective layer when the optical recording card is produced, and thereafter it is adhered to the card base. Thus, the optical recording card can be produced at a high productive efficiency.

RELATED APPLICATION

This application is a continuation of our co-pending application Ser.No. 07/063,174 filed Jun. 15, 1987 now abandoned.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a method of producing an optical ormagneto-optical recording card and a transfer type optical recordingmedium employable for carrying out the method.

In the recent years a number of cards in which various kinds ofinformation are recorded are increasingly put in practical used as IDcard, cash card or bank card.

2. Description of the Prior Art

This kind of card is required to record various kinds of informationssuch as data concerning individual person, data concerning a companyfrom which the card is issued or the like data. In the earier age suchinformations were recorded using visual characters and symbols and inthe later age they were recorded in response to electrical signals whichwere generated magnetically. However, due to rapid increase in number ofcard the conventional card is not in position to take adequate measuresfor preventing data from being falsified and moreover for the currenttendency of increased volume of informations.

In view of the current situation as mentioned above a card including anoptical recording layer to which the latest optical technology isapplied to record informations has been developed in the recent yearsThis kind of card is called optical recording card.

A hitherto proposed optical recording card 1 has a basic structure asshown in FIGS. 1 and 2. Specifically, it includes an optical recordinglayer 4 which is interposed between a card base 2 and a transparentprotective layer 3 made of transparent plastics and optical reading iscarried out from the side of the protective layer 3. It should be notedthat in FIG. 2 an adhesive layer is omitted. The optical recording layer4 comprises an optical reflective layer which has optical reflectionfaces on which a number of data pits are formed. Reading is achievedwith the use of laser beam 9 by detecting data pits each of which has adifferent optical reflectivity.

In order to produce optical recording cards as mentioned above a varietyof technologies have been developed and in the recent years a method ofproducing optical recording cards with the use of transfer technique hasbeen proposed from the viewpoint of facilitating production of opticalrecording cards. An example of production technique for producingoptical card with the aid of transfer technique is shown in FIG. 9 and atransfer type optical recording medium is used for practicing theproduction technique.

Specifically, a transfer type optical recording medium 101 comprises abase film 102, a peeling layer 103, a transparent protective layer 3made of transparent synthetic resin, an optical recording layer 4 and anadhesive layer 104 which are successively superimposed one aboveanother. When an optical card is produced using the transfer typeoptical recording medium 101, the base film 102 is peeled off togetherwith the parting layer and a card base 2 is adhesively secured to thetransfer type optical recording medium 101 to achieve thermal transferon necessary part, as shown in FIG. 10. Thus, an optical recording card100 as shown in FIG. 11 is produced.

A method of producing an optical recording card a mentioned above is aknown technique as disclosed on an official gazette of Japaneselaid-open patent (official gazette of Japanese Laid-Open Patent No.58894/1985 issued on the day of Apr. 5, 1985).

The protective layer 3 of the transfer type optical recording medium 101used for practicing the above-mentioned prior method of producing aconventional optical recording card constitutes an upper layer of theoptical recording card 100 in order to protect the optical recordinglayer 4 from damage or injury and moreover reduce a rate of occurrenceof error during data reading. Accordingly, the protective layer 3 isconstructed by hard material having a thickness of about 400 microns.However, the fact that the protective layer 3 is constructed by thickand hard material makes it difficult to produce the transfer typeoptical recording medium 101 in tape-shape which can be wound about areel. This means that it is inconvenient to handle the transfer typeoptical recording medium 101 when an optical card is produced

Further, since the protective layer 3 has a heavy thickness, there is afear that it is deformed under the effect of heat during thermaltransfer and its surface loses smoothness. This leads to a cause that arate of occurrence of error during data reading increases.

Since laser beam is adapted to pass through the protective layer whendata is written in the optical recording layer or data written in theoptical recording layer is read, damaged or injured protective layer orcontaminated protective layer causes S/N ratio to be reduced.

SUMMARY OF THE INVENTION

Thus, the present invention has been made with the foregoing backgroundin mind.

A first object of the present invention is to provide a method ofproducing an optical recording card which assures that the optical cardis produced at a high production efficiency and at an inexpensive cost.

A second object of the present invention is to provide a transfer typeoptical recording medium usable for practicing the method of producingan optical recording card wherein the transfer type optical recordingmedium can assume tape-shape to be wound around a reel and moreover itis simple to be handled during a step of producing.

A third object of the present invention is to provide a method ofproducing an optical recording card wherein the protective layer of theoptical recording card is not deformed under the effect of heat, thus ithas an excellent flatness and reading of data is achieved at a low rateof occurrence of error.

To accomplish the above objects there is proposed according to oneaspect of the present invention a method of producing an optical ormagneto-optical recording card comprising the steps of adhering atransfer type optical recording medium to the one surface of aprotective layer with the use of an adhesive, the transfer type opticalrecording medium comprising a base film, a peeling layer, an opticalrecording layer and a light permeability adhesive layer which aresuccessively superimposed one above another, removing the base film fromthe transfer type optical recording medium by peeling operation, andthen adhering a card base layer to the protective layer in such a mannerthat the optical recording layer is held therebetween, the opticalrecording layer being adhered to the protective layer.

Further, there is proposed according to other aspect of the presentinvention a transfer type optical recording medium comprising a basefilm, a peeling layer, an optical recording layer which are successivelysuperimposed one above another to constitute a layered structure.

Other objects, features and advantages of the present invention willbecome readily apparent from reading of the following description whichhas been prepared in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be illustrated in the following drawings; inwhich

FIG. 1 is an illustrative perspective view of an optical recording card.

FIG. 2 is a schematic vertical sectional view of the optical recordingcard.

FIG. 3 is a schematic vertical sectional view of a transfer type opticalrecording medium.

FIG. 4 is a series of vertical sectional views illustrating an exampleof process of producing a transfer type optical recording medium.

FIG. 5 is a series of vertical sectional views illustrating otherexample of process of producing a transfer type optical recordingmedium.

FIG. 6 is a series of vertical sectional views illustrating anotherexample of process of producing a transfer type optical recordingmedium.

FIG. 7 is a fragmental enlarged vertical sectional view of a transfertype optical recording medium, particularly illustrating that the basefilm is peeled off.

FIG. 8 is a fragmental enlarged vertical sectional view of an opticalrecording card.

FIG. 9 is a schematic vertical sectional view illustrating aconventional transfer type optical recording medium.

FIG. 10 is a fragmental enlarged vertical sectional view of theconventional transfer type optical recording medium, particularlyillustrating that the base film is peeled off, and

FIG. 11 is a schematic vertical sectional view of a conventional opticalrecording card.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Now, the present invention will be described in a greater detailhereunder with reference to the accompanying drawings which illustrate apreferred embodiment thereof.

First, description will be made as to transfer type optical ormagneto-optical recording medium which is employed for practicing themethod of producing an optical or magneto-optical recording card inaccordance with the invention.

In FIG. 3 reference numeral 11 designates a transfer type opticalrecording medium. Specifically, the transfer type optical recordingmedium is constituted in such a manner that a peeling layer 13 is formedon the base film 12 by employing a peeling process, an optical recordinglayer 4 is formed on the peeling layer 13 and an adhesive layer 14 isthen formed on the optical recording layer 4.

The base film 12 is constructed by polycarbonate,polyethyleneterephthalate, polyimide, polyamide, polysulfone,polyethersulfone, polyetherketone, polyetheretherketone orpolyetherimide and has a thickness in the range of 5 to 100 microns,preferably in the range of 10 to 50 microns.

Next, the optical recording layer 4 is constructed by superimposing theoptical recording material layer on a pattern support layer.

The optical recording layer 4 is formed on the peeling layer 13 and hasan optical reflective layer 15 which includes a number of data pitswhich can be read (see FIGS. 3, 4 and 5). The optical recording layer 4is so formed that data are recorded in dependence on existence of thereadable optical recording material layer or not or by generating phasedifference of reading light due to provision of ruggedness on theoptical recording material layer.

The pattern support layer is constructed by acryl-based resin,vinyl-based resin, cellulose-based resin, polyester-based resin,polyurethane-based resin, epoxy-based resin, alkyd-based resin oramino-based resin and has a thickness in the range of 0.5 to 100microns, preferably in the range of 1 to 50 microns. Generally, thepattern support layer is formed by roll coating or the like process.

The optical recording layer 4 has a thickness in the range of 50 to 2000Å and is constructed by metallic material such as Te, Bi, In, Pb, Sn,Sb, Zn, Se, Cd, Ga, Ag, Au, Cu, Cr, Al or their alloy, or has athickness in the range of 100 Å to 10 microns and is constructed byorganic and/or inorganic compound material such as Te - C, Te - CS₂,Bi - CS₂, Te -teflon, Ag - gelatine or multi-layer film such as Te - dyestuff, Te - nitro cellulose, metallic film - dielectric film, or has athickness in the range of 100 Å to 10 microns and is constructed bydyestuff film such as cyanine dye, phthalocyanine, naphtoquinone dye orhas a thickness in the range of 100 Å to 10 microns and is constructedby compound material of organic material and dye such as nitrocellulosestyrene, acetic acid vinyl, gelatine and dyestuff, sub-oxide such asTeOx, GeOx, SbOx, MoOx or the like, layered material of metallicmaterial and organic material such as AuPt - (PS, PMMA or PVAC),Al-teflon or magneto-optical film material such as MnCuBi, CdCo, TbCo,TbFe, BdTbFe, TbFeCo. It should be noted that in order to form theoptical recording material layer, a technique suitable for producing afilm is employable in consideration of the kind of the optical recordingmaterial.

With respect to reading light visual light such as near-infrared, whilelight, tungsten light or the like is preferable. Alternatively, infraredor ultraviolet may be employed.

The adhesive layer 14 is formed by coating transparent synthetic resinadhesive on the optical recording layer 4 by employing roll coat, flowcoat or the like and then drying it. The adhesive layer 14 isconstructed by copolymer of polychloride vinyl - acetic acid vinyl,polyurethane resin, polyester resin or the like transparentthermoplastic resin.

The peeling layer 13 is formed by employing flow coat, gravure coat orthe like and it is constructed by silicone resine, silicone oil,acryl-based resin, cellulose-based resin or vinyl-based resin and has athickness less than one micron.

Next, description will be made below as to a method of producingtransfer type optical recording medium with reference to FIGS. 4 to 6.

FIG. 4 illustrates a plurality of steps of producing transfer typeoptical recording medium 11a in the case where the optical recordinglayer 4 is formed by a stamping method.

Specifically, the upper surface of the base film 12 is subjected topeeling process to form a peeling layer 13 (a step of peeling treatment)(see FIG. 4(a)).

Next, a shaping resin layer 17 which serves as a pattern support layeris formed on the peeling layer 13 by coating UV hardened resin or thelike on the peeling layer 13 (a step of coating shaping resin) (see FIG.4(b)). The shaping resin layer 17 can also serve as a peeling layer. Inthis case the step of forming peeling layer 13 as shown in FIG. 4(a) isnot required.

Next, a stamper 18 which is previously formed with a rugged pattern ofthe optical recording layer 4 is pressed on the shaping resin layer 17whereby the rugged configuration of the stamper 18 is transferred ontothe shaping resin layer 17 and the latter is caused to harden (a step ofshaping) (see FIG. 4(c)).

Next, a reflective layer 21 which serves as an optical recordingmaterial layer is formed by vacuum depositing on the shaping resin layer17, for example, metallic material having high reflectivity such asaluminum or the like. The thus formed reflective layer 21 has the sameruggedness as the stamper 18 and phase difference of reflected light isproduced in accordance with difference in position between projectedportion and recessed portion whereby required informations can be readoptically (a step of coating the reflective layer) (see a step 4(d)).

Next, an adhesive layer 14 is formed on by coating transparent adhesiveon the reflective layer 21 (a step of coating an adhesive) (see FIG.4(e)).

A transfer type optical recording medium 11a is produced by way of thesteps as mentioned above.

FIG. 5 illustrates a plurality of steps of producing transfer typeoptical recording medium 11b in the case where the optical recordinglayer 4 is formed by an etching method.

Specifically, the upper surface of the base film 12 is subjected topeeling process to form a peeling layer 13 (a step of peeling treatment)(see FIG. 5(a)).

Next, an optical pattern support layer 22 comprising a resin having highlight absorptivity or high permeability relative to reading light isformed on the peeling layer 13 (a step of forming an optical patternsupport layer 22) (see FIG. 5(b)).

The optical pattern support layer 22 serves to support a reflectivelayer 21 which has shortage in mechanical strength by itself andincreases smoothness of the reflective layer 21. Further, it is possibleto have high absorptivity or high permeability relative to readinglight.

Further, by increasing adhesiveness between the reflective layer 21 andthe optical pattern support layer 22 it becomes easier to carry outwriting (in the form of etching or the like).

Generally, the etching process or a resist lift-off process to bedescribed later is practiced by utilizing the portion where a reflectivefilm is existent and the portion where any reflective film is notexistent as data. Thus, to assure increased S/N it is necessary thatcontrast is enlarged. Accordingly, it is required that the support layerhas high absorptivity or high permeability relative to reading light.

It should be noted that the optical pattern support layer 22 can have afunction as peeling layer. In this case the step of peeling treatment asshown in FIG. 5(a) is not required.

Next, a reflective layer 21 comprising metallic material having highreflectivity relative to reading light is formed on the optical patternsupport layer 22 by vacuum depositing or the like process (a step ofcoating reflective layer 21 (FIG. 5(c)).

Next, resist 23 is coated on the reflective layer 21 by roll coating (astep of coating resist) (FIG. 5(d)). The resist 23 may be either ofpositive type or of negative type.

Next, a mask 24 having a pattern representative of optical informationis placed on the resist 23 in close contact therewith and it is exposedto light beam (a step of allowing the mask to be exposed to light beam)(FIG. 5(e)).

Next, the thus exposed resist 23 is developed. This enables the opticalinformation pattern to be transferred to the resits 23 whereby a ruggedconfiguration corresponding to the optical informations is produced onthe resist 23. The recessed part has no resist due to removal of thelatter, causing the surface of the reflective layer 21 to be exposed tothe outside but the residual part of the reflective layer 21 is coatedstill with the resist 23 (a step of developing) (see FIG. 5(f)).

Next, the reflective film 21 is subjected to etching from the above ofthe resist 23. This leads to a result that the part of the reflectivelayer 21 which is not coated with the resist 23 is removed and therebythe surface of the optical pattern support layer 22 is exposed to theoutside whereas the part of the reflective layer 21 which is coated withresist 23 resides on the surface of the optical pattern support layer 22with the resist while maintaining the vacuum deposited state (a step ofetching ) (see FIG. 5(g)).

Next, the residual resist is removed (a step of removal) (see FIG.5(h)).

Next, transparent adhesive is coated from the above of the opticalreflective layer 15 including the residual reflective layer 21 toconstitute an adhesive layer 14 (a step of coating an adhesive) (seeFIG. 5(i)). Thus, a transfer type optical recording medium 11b isobtained.

FIG. 6 illustrates a plurality of steps of producing transfer typeoptical recording medium 11c in the case where the optical recordinglayer 4 is formed in accordance with the resis lift-off process.

Specifically, the upper surface of the base film 12 is subjected topeeling process to form a peeling layer 13 (a step of peeling treatment)(see FIG. 6(a)).

Next, an optical pattern support layer 22 comprising a resin having highlight absorptivity or high permeability relative to reading light isformed on the peeling layer 13 (a step of forming an optical informationsupport layer) (see FIG. 6 (b)).

The optical pattern support layer 22 can serve as a peeling layer. Inthis case the step of peeling as shown in FIG. 6(a) is not required.

Next, resist is placed on the optical pattern support layer 22 byemploying a spin coating process (a step of resist coating) (see FIG.6(c)). The resist 23 may be either of positive type or of negative type.

Next, a mask 24 having a pattern representative of optical informationsis placed on the resist 23 in close contact therewith and it is thenexposed to light beam (a step of allowing the mask to be exposed tolight beam) (see FIG. 6(d)).

Next, the thus exposed resist 23 is developed. This enables the opticalinformation pattern to be transferred to the resist 23 whereby a ruggedconfiguration corresponding to the optical informations is produced onthe resist 23. The recessed part has no resist due to removal of thelatter, causing the surface of the optical pattern support layer 22 toexposed to the outside but the residual part of the optical patternsupport layer 22 is coated still with the resist. 23 (a step ofdeveloping) (see FIG. 6 (e)).

Next, a reflective layer 21 comprising metallic material having highreflectivity relative to light is formed on the resist 23 by vacuumdepositing (a step of coating a reflective layer 21 (see FIG. 6 (f)).

Next, the resist 23 is removed by a lift-off process. Thus, the part ofthe reflective layer 21 located on the resist 23 is removed togetherwith the resist 23 whereby the surface of the optical pattern supportlayer 22 becomes exposed to the outside. On the other hand, the part ofthe reflective layer 21 which is not located on the resist 23 resides insuch a state that it is vacuum deposited on the surface of the opticalpattern support layer 22 whereby an optical reflective layer 15 is built(a step of lift-off) (see FIG. 6(g)).

Next, transparent adhesive is coated from the above of the residualreflective layer 21 (optical reflective layer 15) to form an adhesivelayer 14 (a step of coating an adhesive) (see FIG. (h)).

A transfer type optical recording medium 11c is produced by way of thesteps as mentioned above.

Incidentally, the optical information pattern as mentioned above may beeither preformatting pit pattern or data pit pattern.

Next, description will be made below as to a method of producing anoptical recording card using a transfer type optical recording medium 11(11a, 11b, 11c) which is constructed in the above-described manner.

First, as shown in FIG. 7, a protective layer 3 comprising plastics orthe like having high permeability such as polycarbonate or the like ispreviously provided and a transfer type optical recording medium 11 issuperimposed one above another with an adhesive layer 14 superimposedtherebetween. Thereafter, heat and pressure are applied to the thussuperimposed structure so as to allow the protective layer 3 and thetransfer type optical recording medium 11 to be adhesively connected toone another and after completion of adhesive connection the base film 12is peeled off together with the peeling layer 13.

Alternatively, the protective layer 3 may be adhesively superimposed onthe transfer type optical recording medium 11 after the peeling layer 13is peeled off from the latter. When the base film 12 is peeled off, thepeeling layer 13 may be located on the base film 12 or it may reside onthe optical pattern support layer 22.

The thus obtained superimposed structure comprising the opticalrecording layer 4 and the protective layer 3 is further superimposed ona card base 2 in such a manner that the optical recording layer 4 and anadhesive layer 25 are interposed therebetween. Thus, an opticalrecording card 1 as shown in FIG. 8 is obtained.

(EXAMPLE)

As a protective layer polycarbonate having a thickness of 0.5 mm wasused, while as a card base white and hard polyvinylchloride having athickness of 0.25 mm of which adhesive surface was coated withurethane-based adhesive having a thickness of 5 microns was used. Atransfer type optical recording medium was temporarily attached to apart of a protective layer using a hot plate made of metallic material,rubber board, rubber roll or the like each of which was heated to about100° C. It should be noted that at this moment only slight pressingforce was required to such an extent that the transfer type opticalrecording medium was temporarily secured to the protective layer andtherefore it was not required that the former was fixedly secured to thelatter. After completion of temporal adhesive securing the base film waspeeled off. The protective layer and the card base were thermallyadhered to one another in such a manner that they were clamped betweenmirror surface plates. At this moment the optical recording layer wasinterposed between the protective layer and the card base. Thermaladhering was achieved at pressure of 30 Kg/cm² and temperature of 110°C. for a period of time of 10 minutes. Thereafter, heating wasinterrupted and cooling was effected for a period of time of 15 minutesusing water. Finally, the material was cut to dimensions correspondingto a card. Thus, a required card was obtained.

ADVANTAGEOUS EFFECTS OF THE INVENTION

The present invention offers the following advantageous effects.

According to the method of producing an optical recording card using atransfer type optical recording medium as constructed in theabove-described manner it is possible to attach the optical recordingmedium to a card by transferring operation. In consequence, producing ofthe optical recording card can be effected at a high productiveefficiency. Since the peeling layer of the base film is located oppositeto the reading side of the optical recording layer, it is assumed thatresidual foreign material relative to the peeling layer does not hinderentrance and reflection of reading light and no contamination takesplace due to adherence of dust or the like to the residual foreignmaterial of the peeling layer.

Further, since the transfer type optical recording medium of theinvention does not have any hard and thick protective layer, it ispossible to form the transfer type optical recording medium intape-shape. This means that the transfer type optical recording mediumcan be wound about a reel. Therefore, it is easy to handle the transfertype optical recording medium during a step of producing an opticalrecording card. Further, since the protective layer can be reserved ortreated separately from the transfer type optical recording medium,there is no fear of injuring or degrading the protective layer with theresult that an optical recording card can be obtained with a rate ofoccurrance of error during data reading being minimized.

Since a transfer type optical recording medium can be preserved at alltime regardless of how a thickness of the protective layer differs fromproduct to product, all that is required is to adhere it to a protectivelayer having a predetermined thickness in response to the specificationof a product. Accordingly, a countermeasure against change in thicknessof the protective layer of a product can be taken quickly. Further, inthe case where a protective layer has the same size as a card base and atransfer type optical recording medium is prepared smaller than theprotective layer, it is very easily achieved by preparing the transfertype optical recording medium separately from the protective layer inaccordance with the present invention that an optical recording layer iskept in a closely sealed state within the optical recording card whilethe protective layer and the card base are fused together along theperipheral part of the optical recording card.

Thus, it is possible to prevent the optical recording layer from beingoxidized or deteriorated under the influence of outside atmosphere byholding the optical recording layer between the protective layer and thecard base in a closely sealed state. Moreover, it is possible to preventan occurrence of peeling off from the card edge portion.

While the present invention has been described above with respect to afew preferred embodiments thereof, it should of course be understoodthat it should not be limited only to them but various changes ormodifications may be made in a suitable manner without departure fromthe spirit and scope of the invention as defined by the appended claims.

What is claimed is:
 1. A transfer type recording medium for producing anoptical or magneto-optical recording card comprising a base film,peeling layer, an optical or magneto-optical recording layer and a lightpermeable adhesive layer which are successively superimposed one aboveanother to constitute a layered structure; and whereinsaid optical ormagneto-optical recording layer includes a pattern support layer and anoptical or magneto-optical recording material layer superimposed on thepattern support layer, said pattern support layer being formed ofacryl-based resin, vinyl-based resin, cellulose-based resin,polyester-based resin, or polyurethane-based resin and having athickness in the range of 0.5 to 100 microns, preferably in the range of1 to 50 microns; and wherein said optical or magneto-optical recordingmaterial layer has a thickness in the range of 50 to 2000 angstroms andis formed of metallic material selected from the class consisting of Te,Bi, In, Pb, Sn, Sb, Zn, Se, Cd, Ga, Ag, Au, Cu, Cr and Al or theiralloy, or has a thickness in the range of 100 angstroms to 10 micronsand is formed of compound material of organic and/or inorganic materialselected from the class consisting of Te - C, Te - CS₂, Bi - CS₂, Te -teflon, Ag -gelatine, or multilayer film selected from a class of filmconsisting of Te - dyestuff, Te - nitrocellulose, metallic materialfilm - dielectric material film, or has a thickness in the range of 100angstroms to 10 microns and is formed of dyestuff film selected from theclass of film consisting of cyanine dye, phthalocyanine, naphthoquinonedye, or has a thickness in the range of 100 angstroms to 10 microns andis formed of compound material of organic material selected from theclass of material consisting of nitrocellulose styrene, acetic acidvinyl or gelatine and dyestuff, sub-oxide selected from the class ofmaterial consisting of TeOx, GeOx, SbOx or MoOx, or layered material ofmetallic material and organic material selected from the class ofmaterial consisting of AuPt - (polystyrene, polymethylmethacrylate,polyvinylacetate) or Al - teflon or inorganic film material selectedfrom the class of material consisting of MnCuBi, CdCo, TbCo, TbFe,GdTbFe, or TbFeCo.
 2. A transfer type recording medium as claimed inclaim 1, wherein said base film comprises polycarbonate,polyenthyleneterephthalate, polyimide, polyamide, polysulfone,polyethersulfone, polyetherketone, polyetheretherketone orpolyetherimide and has a thickness in the range of 5 to 100 microns,preferably in the range of 10 to 50 microns.
 3. A transfer typerecording medium as claimed in claim 1, wherein said adhesive layercomprises transparent thermoplastic resin selected from a class of resinconsisting of vinyl chloride - acetic acid copolymer, polyurethaneresin, or polyester resin.
 4. A transfer type recording medium asclaimed in claim 1, wherein said peeling layer comprises silicone-basedresin, silicone oil, acryl-based resin, cellulose-based resin orvinyl-based resin and has a thickness less than one micron.
 5. Atransfer type optical recording medium for producing optical recordingcard comprising a base film, peeling layer, an optical recording layerand a light permeable adhesive layer which are successively superimposedone above another to constitute a layered structure, wherein saidoptical recording layer includes a pattern support layer and an opticalrecording material layer superimposed on the pattern support layer, saidpattern support layer being formed of acryl-based resin, vinyl-basedresin, cellulose-based resin, polyester-based resin, orpolyurethane-based resin and having a thickness in the range of 0.5 to100 microns, preferably in the range of 1 to 50 microns; and whereinsaidoptical recording material layer has a thickness in the range of 50 to2000 angstroms and is formed of metallic material, selected from theclass of material consisting of, Te, Ag, Au, Cu, Cr, or Al or theiralloy.
 6. A transfer type optical or magneto-optical recording mediumfor producing optical or magneto-optical recording card comprising abase film, peeling layer, an optical recording material layer to bewritten on by a plurality of data pits, and a light permeable adhesivelayer which are successively superimposed one above another toconstitute a layered structure, wherein said optical or magneto-opticalrecording layer includes a pattern support layer and an optical ormagneto-optical recording material layer superimposed on the patternsupport layer, said pattern support layer being formed of acryl-basedresin, vinyl-based resin, cellulose-based resin, polyester-based resin,or polyurethane-based resin and having a thickness in the range of 0.5to 100 microns, preferably in the range of 1 to 50 microns; andwhereinsaid optical or magneto-optical recording material layer has athickness in the range of 50 to 2000 angstroms and is formed of metallicmaterial selected from the class of material consisting of Te, Bi, In,Pb, Sn, Sb, Zn, Se, Cd, or Ga or their alloy, or has a thickness in therange of 100 angstroms to 10 microns and is formed of compound materialof organic and/or inorganic material selected from the class of materialconsisting of Te - C, Te - CS₂, Bi - CS₂, Te - teflon, Ag - gelatine, ormultilayer film selected from the class of materials consisting of Te -dyestuff, Te - nitrocellulose, metallic material film - dielectricmaterial film, or has a thickness in the range of 100 angstroms to 10microns and is formed of dyestuff film selected from the class ofmaterials consisting of cyanine dye, phthalocyanine, naphthoquinone dye,or has a thickness in the range of 100 angstroms to 10 microns and isformed of compound material of organic material selected from the classof material consisting of nitrocellulose styrene, acetic acid vinyl orgelatine and dyestuff, sub-oxide selected from TeOx, GeOx, SbOx or MoOx,or layered material of metallic material and organic material selectedfrom AuPt - (polystyrene, polymethylmethacrylate, polyvinylacetate) orAl - teflon or inorganic film material, namely, MnCuBi, CdCo, TbCo,TbFe, GdTbFe, or TbFeCo.
 7. A method of producing an optical recordingcard wherein an optical recording layer is interposed between a cardbase and a protective layer comprising the steps of:adhering a transfertype optical recording medium to the one surface of said protectivelayer with the use of an adhesive, removing said base film from thetransfer type optical recording medium by peeling operation, and thenadhering a card base layer to said protective layer in such a mannerthat said optical recording layer is held therebetween, said opticalrecording layer being adhered to said protective layer; and wherein saidtransfer type optical recording medium comprises a base film, peelinglayer, an optical recording layer and a light permeable adhesive layerwhich are successively superimposed one above another to constitute alayered structure; and said optical recording layer includes a patternsupport layer and an optical recording material layer which issuperimposed on the pattern support layer, said pattern support layerbeing formed of acryl-based resin, vinyl-based resin, cellulose-basedresin, polyester-based resin, polyurethane-based resin, epoxy-basedresin, alkyd-based resin or amino-based resin and having a thickness inthe range of 0.5 to 100 microns, preferably in the range of 1 to 50microns, and said optical recording medium layer having a thickness inthe range of 50 to 2000 A and comprising a metallic material selectedfrom Te, Ag, Au, Cu, Cr, Al or their alloy.
 8. A method as claimed inclaim 7, wherein said protective layer comprises plastic material havinghigh light permeability selected from the class of plastics consistingof polycarbonate.
 9. A method as claimed in claim 7, wherein said basefilm formed of polycarbonate, polyethyleneterephthalate, polyimide,polyamide, polysulfone, polyethersulfone, polyetherketone,polyetheretherketone or polytherimide and has a thickness in the rangeof 1 to 100 microns, preferably in the range of 10 to 50 microns.
 10. Amethod as claimed in claim 7, wherein said peeling layer formed ofsilicone-based resin, silicone oil, acryl-based resin, cellulose-basedresin or vinyl-based resin and has a thickness less than one micron. 11.A method as claimed in claim 7, wherein said adhesive layer formed oftransparent thermoplastic resin, selected from the class of materialconsisting of, vinyl chloride-polyvinylacetate copolymer, polyurethaneresin, or polyester resin.
 12. A method of producing an optical ormagneto-optical recording card wherein an optical or magneto-opticalrecording layer is interposed between a card base and a protective layercomprising the steps of:adhering a transfer type optical recordingmedium to the one surface of said protective layer with the use of anadhesive, said transfer type optical or magneto-optical recording mediumcomprising a base film, a peeling layer, an optical or magneto-opticalrecording layer for receiving writing, and a light permeable adhesivelayer which are successively superimposed one above another toconstitute a layered structure; removing said base film from thetransfer type optical or magneto-optical recording medium by peelingoperation, and then adhering a card base layer to said protective layerin such a manner that said optical or magneto-optical recording layer isheld therebetween, said optical or magneto-optical recording layer beingadhered to said protective layer; and wherein said optical ormagneto-optical recording layer includes a pattern support layer and anoptical or magneto-optical recording material layer which issuperimposed on the pattern support layer; said pattern support layer isformed of acryl-based resin, vinyl-based resin, cellulose-based resin,polyester-based resin, polyurethane-based resin, epoxy-based resin,alkyd-based resin or amino-based resin and has a thickness in the rangeof 0.5 to 100 microns, preferably in the range of 1 to 50 microns; saidoptical or magneto-optical recording material layer has a thickness inthe range of 50 to 2000 angstroms and comprises metallic materialselected from the class of material consisting of Te, Bi, In, Pb, Sn,Sb, Zn, Se, Cd, or Ga or their alloy, or has a thickness in the range of100 angstroms to 10 microns and comprises compound material of organicand/or inorganic material selected from the class of material consistingof Te - C, Te - CS₂, Bi - CS₂, Te - teflon, Ag - gelatine, or multilayerfilm selected from the class of materials consisting of Te - dyestuff,Te -nitrocellulose, metallic material film - dielectric material film,or has a thickness in the range of 100 angstroms to 10 microns andcomprises dyestuff film from a class of film selected from cyanine dye,phthalocyanine or naphthoquinone dye, or has a thickness in the range of100 angstroms to 10 microns and comprises a compound of organic materialselected from the class of material consisting of nitrocellulosestyrene, acetic acid, vinyl or gelatine and dyestuff, sub-oxide selectedfrom TeOx, GeOx, SbOx, or MoOx, or layered material of metallic materialand organic material selected from the class of material consisting ofAuPt - (polystyrene, polymethylmethacrylate, polyvinylacetate) or Al -teflon or inorganic film material selected from the class of materialsconsisting of MnCuBi, CdCo, TbCo, TbFe, GdTbFe, or TbFeCo.
 13. A methodas claimed in claim 12, wherein said protective layer is constructed byplastic material having high light permeability selected from the classof plastics consisting of polycarbonate.
 14. A method as claimed inclaim 12, wherein said base film formed of polycarbonate,polyethyleneterephthalate, polyimide, polyamide, polysulfone,polyethersulfone, polyetherketone, polyetheretherketone orpolyetherimide and has a thickness in the range of 1 to 100 microns,preferably in the range of 10 to 50 microns.
 15. A method as claimed inclaim 12, wherein said peeling layer formed of silicone-based resin,silicone oil, acryl-based resin, cellulose-based resin or vinyl-basedresin and has a thickness less than one micron.
 16. A method as claimedin claim 12, wherein said adhesive layer formed of transparentthermoplastic resin, selected from the class of material consisting of,vinyl chloride-polyvinylacetate copolymer, polyurethane resin, orpolyester resin.